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' d -L.H.NASH.

- ROTARY WATER METER..

No. 449,821. PatentedAp'r. 7,1891,

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V LAI Hl v ROTEY WATER `METER.` l v NO.- 449,821.. l I Patented Apr."7 1891.

(No Model.) 6 Sheets-Shee 4 L. H. NASH. f A ROTARYWATER METER. No. 449,821., PatentedApr. '7, 1891.

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L. H.' NASH. ROTARY WAIERMETERI4 N0. 449,821. Patented Apr. 7,1891.

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l UNITED STATES- PATENT OEEICE.

TJCWIS UALLOCK NASH, F SOUTH NORVLK, CONNECTICUT, SSIGNOR T() anaxfvrioxnr. METER COMPANY, on .NEW YLQBK, n..

ROTARY WATER-METER.

SPEGIFICATION forming part of Letters Patent No. 449,821, dated April 7, 1891. `App1icaion mea December 1a, 188s'. serai-N0. 293.425. manada .To all whom/vit may concern:

A slides or arms which have an independent movement relative to said piston and which form'7 by contact with-:the case-walls, lines of division which separate the inlet from the outlet'spaces.. Withthe orbit motion the piston may be made to rotate about its own axis. --Instead of the piston being substantially circular, as herein illustrated, it may have Various forms, andz instead off"'moving ir a circular orbit its center. may describe any suitable path. Neither is my invention confined to shows a different position of the piston. Fig.-

section of a modified. form of meter.

any. particular form oral-rangement of slides or arms.

The specific features of novelty will be particularly set forth in the claims concluding this specification. l

Figure 1 represents a vertical ,section of a meter embodying my invention. Fig. 2 is a plan ofthe lower sections of the' measuringchamber. Fig. 3 is a. section on the line of Fig. 1, through the. top plate of the piston,

'showing the ports and connecting-passages. 35-

Fig. 4 is a section on the liney of Fig. 1,look ing upward. Fig. 5 is a similar view showing the parte in a different position. Fig. 6 is a section of piston adapted to have not only an eccentric motion, but also a motion of rotationabont its own axis. Fig. 7 is a velrticasl `ig. is a section on the line s of Fig. 7. Fig. 9

l0 is a top view of the piston. Fig. 11 is a plan of the case-chamber, showing the inlet and discharge ports. I I f The following is a description of the accompanying drawings in such full, clear, and

exact terms as to enable any one skilled in the art to which my invention appertains to practice it in its preferred form.

Referring to Figsfl and `5, the measuring device proper is inclosed in an exterior case A1A', which protects the parts from injury and has round it theinlet and discharge passages which connect with the measuring device proper. Th'e measuring device is composed of a case D, of cylindrical l forni, andY has a central'abutment D', in which are formed an annular inlet-passage C and an- 6o outlet-passage B, and which terminates in a screw-thread securing the device to the case A. The piston E is of cylindrical form and 'is-slotted.t`o, receive the slides H, whichll the space between the case-walls and the As seen in Figs. 4 and'5, the piston and the slides I-l divide the case-chamber into eight measuring-spaces, of whichfous-a. a2 'aa a4. are. within the ring-piston and four bb b? -b 7eA are without the ring-piston', and'thesespaees continually increase and diminish in volumeas the piston sweeps around the cases;l 'EIheLl piston carries a head plate F, which?" hasv formed in it ports and passages adaptedto l coact with the ports or passages 'Band C of the case-abutment D. A s shown, the, headplate F has four central ports cv c? ci c4, and

these ports communicate with branch passages, one set ofv which d d2 d3 d4 (shown in 8o full lines in Fig. 3) communicate withl the case-spaces b b2 b3 b, while the other se'tefc2 e3 e4 (shown in dotted. lines in' the same iigure) communicate with the measuring-spaces a a2a3 a4.. The movement of the piston is 85 communicated tothe registering-gearing I through a stud J, which drives a crankarm K -in a well-known manner. D.

Themeter illustrated and hereinbefore 'described operates as follows: The piston being 9o in the position shown in Fig. 5, water enters the annular s ace C of the abutment and the `ports c2 and c of the valve through the passages cl2 d8 into the exterior measuring-space' b2 and b3, and also through the passages e2f95 and e3 into the interior' nieasuring-spaces'fa?- l and as, vwhile the water 'escapes from the ex- S;=: terior measuring-spaces b and'b through the 'I passages d and d* and ports c and ,ci tegthe passage B, andalso escapes from the interior "roo spaces a and a* through the passages-e andv e4 and ports c and c?. tothe outletpassage. f

Hence the piston is driven in the direction -of the arrow 2 to the position shown in Fig".

4, wherein the portgc2 is just closing coing, munlcation with` the inlet-passageGand and water enters the'po'ts o and passages d" and e to the s aces b anda and escapes from the spaces s and as'through passages d and ea into the port c3 andoutlet-passageB,

driving the piston in the direction of the ar-v row 2. In this way the piston sweeps around the case, enlarging and contractingthe measuringspaces, whilev the motion of its headplate fastened to said lpiston controls the opening and closing of' the inlet and discharge ports therefor at theproper time toadmit and' discharge the water. If it is desired-to have lthe pistonl rotate upon its own axis, I may formgear-teeth ou the piston-head and cerroaponding teethonthe case; as'shown in Fig. 4G but the operation ofthe measu ring-spaces andotth-e portswilljbe'substantially the same. In Figs. 7 to 1'1` a meter'and piston is shown having' the same displacing action; butthe arrangement of the inlet and-discharge ports is dilerent. Herelthey are controlled; by the piston properinstead of by the web or head thereof. i

TheI meter-case shown is formed in a single casting. As seen in Figs. 7 and 11,'it has a supply-passage C, which connects with a seriesrof'inlebports d dfd d, andl a discharge p B which connects-with the dischargeports e e e. The pistomE is supplied with the web F, which carries' a pin- J, drivingt-he registering'device as before, while the pistou proper has formed in it port grooves or chambers f g h', &c., which coact with the headhports tocontrol the flow/of' the wa.-

ter. In order to guidethe piston in' its movement, If have shown a series of studs fi', which about in contact with studs 7c; .'The-sl'id'esH are inserted as before andl divide thecasef chamber into measuring-spaces a"b ,-&c.

Referring to Fig. 9, water is entering spaces ba and a a. through the 4inlet-'ports d, d, d," and d andy escaping from the spaces b', as, and a" through the discharge-ports e', e,

' e, andl c, moving the piston in the direction of the arrow 2 to the position 'shown in Fig. 8, in which the spaces a', b',I a, and b3 are neutral, and water enters the spaces; c and b* through ports d2 and d4 and' escapes fromspaceso4 and b2 throughports eaude, driving the piston in the directionof the arrow 2.

I have sh p the walls of the case-chamber; but it is rnot necessary-tnform a joint between these parts,

asthcslidesHl are capable of dividing the caseciiambergiuto measuring-spaces.

It `will of course be understood that myin .vention is not limi tod tothe preciseparts and own the pistons E in contact with nif' invention or' the scope of the claims. It W l1 alsobe understood that since the spaces both insideA and outside the .piston operate to displace the water I may construct a meter having either the inside or the outside displacing action only, and I do not confine my invention to the double-acting `device shown.

What I claim', and desire to secure by Letters Patent, is- 1. InfaI watermeter, the combination of an inclosing case, a piston having an orbit motion therein, provided with arms having an independent motion relative to said piston, forming contact with thecase-wallsat aplurality of points toseparate thereociving f rom the discharging spaces; and suitable inletv and outlet ports, substantially as described. l2. In' a water-metier,.the combinatiomof an ginclosing'case, a piston having an orbit no `tion therein, and also amotoxr ofrotal'on zpl separatethereceivilng fromtho discharging spiwemandsuitabe inlet and outlet 'substantially aes-described.

3. In"l a the combination of an i motion-'t ein,prvidedwitharmshsvingan l piston, orniingcont'act separate-the reoeivingrfren the discharging spaces, and suitable. inlet and outlet parte, substantialIy ias-described.

4. In avatar-meter, the incloeingcase, a hollowy Teton an orbit 'motion therein, provid with armshavingan independent movement-.with relation tosaid piston, form ingcontact with thecase-wale to divide this chambers both inside andmniside nig-spaces,` and suitableinlet and ontiet snbetantallyfas described; l

5. In a water-metenan inclosing case and a 'pi'ston'having an orbit motion therein, plovided with armshaving anindependont nwel ment with relation to said piston, combined wifhfports controlled by the-piston itselt'or i the arms thereof for admitting and i discharg Jing the-water, substantially asde'scribed.

' 6. 4In a'waterfmeter, the combination of ,inolosing case, a piston having au orbit motion therein, provided with arms havingan independent motion thcreinwith relation to said piston and Vprovided with a transverse iweb containing ports, substantially as de'-l .Sribed; :L

7; The combination, in a watersmeter, oi an incl'osing case, with a measuring device in iclosed thereby, composed of a case D of cyllindrical form, having a central concentric "abutment D', in which are formed an 'annular -i'n1etpassage C and a vcentraloutlet-pas l. chargi its yown axis, provided' with arms having a'n independent movement `with relation to'1 said sten, forming-contact with the independent` movement with relation-tn. said with theoase-walls to combination' of anl of said piston intoseparate receivingand dis ployed. without departing from the spirit of ,7o

,i a-M'piston'llavingan orbit IOO 'sage B,"a.cy1indricnl ring-piston having an orbit motion within the chamber of the case D and provided with radial slides H, and ahead-plate F,capping the measuring device,

moving with the piston and' containing 'ports and passages co-operat-ing with the said ii let and loutlet passages, substantially asdescribed.

8. In awaterfmeter, the cembination'oran inelosing case having a central concentric' abutment wherein is formed the inlet and the outlet passages, a ring-piston having an orbit s motion within the chamber of said case and said piston, having ports and passages coacting with the said inlet and outletpassages, substantially as herein setforth. v

9. In a water-meter, a measuring device consisting of the case D, having a central concentric abutment forming the inlet andthe outlet passages C and B, a ring-piston` having slides and a head-plate, the latter having ports and passages and seated loosely. upon the said case and its abutment, and the ringpiston depending from said headplate.and having an orbit motion within the chamber of said case, substantially as described.

head-p1`ate hasa jointforming seat and has` an orbit movement with the piston, .substan`- tially as described.'

11. A measuring device for water-meters, consisting of an opemtop chamber having a concentric central abutment formed with vertical through passages for the inflow and outiiow 'of the water, and a ring-piston having radial slides and a suspending headplate provided Witli ports and passages controlled by the movements of the piston and eoacting with the inlet and the outlet passages, substantially as described.

In testimony. whereof I have hereunto set my hand in the presence of two subscribing witnesses.

A VLEWIS i-iALLocK NASH.

Witnesses:

JNO. H. N oasis,

Pnacr MACCALLUM. 

